2.2.9.12 PidTagWlinkGroupClsid Property
Type: PtypBinary ([MS-OXCDATA] section 2.11.1)
The PidTagWlinkGroupClsid property ([MS-OXPROPS] section 2.1071) specifies the value of the PidTagWlinkGroupHeaderID property (section 2.2.9.3) of the group header associated with the shortcut.